Summary:
Endless worlds ruled by Fate, and Harry chose Fate every time. What if once, he chose Death? It was time for Harry to live in a world of Death's choosing, where Death ruled and no Fate lingered. Death took him in their hands and sent him to one such place. This was Death's reward. Harry reborn as Tsuna's little sister.
Notes:
I'm even LESS than an amateur writer, and am only doing this for fun in my spare time. Flames will be ignored so why even bother?
Be prepared for random changing of tenses, typos and grammar and punctuation mistakes. I anticipate there will also be plenty of run-on sentences. If that offends your sensibilities then don't read my stuff. Also, I won't be sticking to canon timelines accurately or at all. It's been a while since I've seen or read most of the fandoms I follow so I'm working off my memory which is often times like that of a goldfish. When I can't remember what actually happened I'll likely be making stuff up instead of researching. If that bothers you, then shoo.
Prologue:
Death and Fate. Two great nameless, faceless entities that governed the known and unknown universes and all their possible iterations alike. Some they ruled over equally, some they didn't, and some one or both of them forsook altogether. The possibilities were endless, but some outcomes were woven so tightly into the fabric of reality that they almost never differed. In the case of the worlds which housed Harry Potter after Harry Potter, worlds which just so happened to be mostly dominated by Fate, it was supposed to go like this:
In these worlds, Harry Potter was tied to both Fate and Death. Fate through prophecy and Death through deed. The prophecy once uttered never failed to tie him to Fate, and his unintentional collection of the Hallows never failed to tie him to Death. In these worlds, the entities of immeasurable power that were tied intrinsically to his being would vie for dominance. Fate granted him Luck, and so expected to be chosen over Death, whose power was weak here. Death did what it could, and lent him their power, and so hoped to be chosen over Fate.
In these worlds, though he didn't know it, Harry Potter carelessly tossed Death aside over and over. Without fail he chose to return to life from inside that train station, and step back onto the path Fate started him on. Harry Potter would then choose to abandon the Hallows that caused him what he thought was nothing but misery, unknowingly and ironically choosing to follow Fate completely and utterly. He would sever his weak tie to Death, but he did so with no regrets. In the end, he fulfilled his Fate and went on to reap Fate's reward, living many happy years before dying of old age to reunite with those he'd lost.
But, in one world, just one, something went… differently. When Harry Potter died in this world, he embraced Death in that train station with open arms. He chose not to step back onto the path Fate created for him. There was no discernable reason, except that perhaps a stitch in the fabric of reality had come loose. In the end, the reason did not matter, only the result. In this world, Death was the one that gained dominion over one Harry James Potter, and Fate was the one cast-off and rejected. The hands of Fate trembled, and Death gained a foothold. In this one world, Harry Potter chose Death over Fate, and that made all the difference.
•••
Harry Potter did not come back to life. The newspapers hailed him a hero. His name would be remembered for generations, among the general masses as The Savior, among his comrades as Their Leader, among his friends and their descendants as Just Harry. He would be remembered for his great deeds, for his great compassion, and for his great sacrifice. In this world, there was no Fate's reward for one Harry Potter. Harry Potter died young, cold and alone, but with a peaceful smile on his face. Choosing Death cost Harry Potter his future, his life and his happiness. It would have ended there, in tragedy, but for one thing…
Death had its own reward to bestow.
Death gathered the soul of Harry Potter in its hands, and sent him to a place where Death reigned supreme. Harry Potter would live again, not on the path of Fate as endless Harrys had before him, but Harry Potter would live…
With his Dying Will.